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Sidewall fireproofing board of tunnel
| Description | Sidewall fireproofing board of tunnel |
| Raw Materials | magnesium oxide, magnesium chloride |
| Standard Size | 1220mm×2440mm |
| Thickness | 16mm |
| Basic Color | white |
| Water Content | ≤10 |
| Water Absorption | ≤40 |
| Manufacturing Standard | GA160-2004 |
| Fire Resistance | Incombustibility Class A |
| Thermal Conductivity | Average≤0.20W/MK |
| Bending Strength | Transverse≥11.0N/mm3 Vertical≥8.5N/mm3 |
| Series | plain,electrostatic,metal,wood grain |
| Packing | Wooden pallet |
| Trade Terms | FOB SHANGHAI, CNF, CIF,CFR |
| Payment | T/T, L/C at sight |
| Leadtime | 15days after receipt of the T/T deposit or L/C. |
| Main Characteristic | 1.Fire proof and non combustibility |
| 2.Non-flammability: GB8624 grade A | |
| 3.Waterproof: resistant to deformation in wet environments | |
| 4. Weight: Light weight,(volume weight: 1.02-1.06g/cm3) | |
| 5. Strength: Bendable and impact resistant | |
| 6.Invariability: Resistant to deformation in wet, hot and dry conditions | |
| 7. Aging resistance | |
| 8.Heat Resistance: Thermal conductivity of 0.020W/(m.°C) | |
| 9.Durability: Resistance to halogen accumulation, long lasting strength | |
| 10.Cold resistance: can be used at 40 degree | |
| 11.Installation: Easy to work, fix and decorate | |
| 12.Environmentally friendly |
Technical parameters of fireproofing board for tunnel
| Items to be inspected | Technical requirements and parameter | ||
| Areal density(kg/m2) | ≤25 | ||
| Allowable difference between edge flatness and diagonal line | Not inferior to requirements of GA160-2004,4.3.3 | ||
| Bend strength in dry condition(Mpa) | Satisfies the requirements of GA160-2004,4.4 | ||
| Bend strength in condition of saturated moisture absorption (Mpa) | No less than 70% of bend strength in dry condition | ||
| Deformation rate after moisture absorption(%) | ≤0.20 | ||
| Performance of anti-dehylogenation | No bead and no damp | ||
| Toxicity of generated fume | Not inferior to ZA1 of GB/T20285-2006 | ||
| Water resistance (h) | ≥720 | ||
| No cracking, aliquation,dropout after test, slight swell and color change is allowed | |||
| Acid resistance | ≥360 | ||
| No cracking, aliquation,dropout after test, slight swell and color change is allowed | |||
| Alkaline resistance(h) | ≥360 | ||
| No cracking, aliquation,dropout after test, slight swell and color change is allowed | |||
| Moisture and heat resistance(h) | ≥720 | ||
| No cracking, aliquation,dropout after test, slight swell and color change is allowed | |||
| Water absorption rate (%) | ≤12.0 | ||
| Fire resistance performance(h) | standard | Limit of fire resistance (h) | ≥2.0 |
| HC | Limit of fire resistance (h) | ≥2.0 | |
| RABT | Limit of fire resistance (h) | During temperature rise≥2 | |
| During temperature drop≥1.83 | |||
Sidewall fireproofing board of tunnel